class B {
	int x=100,y=200;
	public void setX(int x) {
		x=x;
}
	public void setY(int y) {
		this.y=y;
}
	public int getXYSum() {
	return x+y;
}
}	public class xiti2 {
		public static void main (String args[]) {
			B b=new B();
			b.setX(-100);
			b.setY(-200);
			System.out.println("sum="+b.getXYSum());
}
}